private Label insertPolicy(MeetLabel meet, PolicyLabel lbl)
{
if (meet.Label2 is PolicyLabel)
{
return(new MeetLabel(meet.Label1, meet.Label2 as PolicyLabel + lbl));
}
if (meet.Label1 is PolicyLabel)
{
return(new MeetLabel(meet.Label1 as PolicyLabel + lbl, meet.Label2));
}
Label l1 = null, l2 = null;
if (meet.Label2 is MeetLabel)
{
l2 = insertPolicy(meet.Label2 as MeetLabel, lbl);
}
if (l2 == null && meet.Label1 is MeetLabel)
{
l1 = insertPolicy(meet.Label1 as MeetLabel, lbl);
}
if (l1 == null && l2 == null)
{
return(null);
}
else if (l1 == null)
{
return(new MeetLabel(meet.Label1, l2));
}
else
{
return(new MeetLabel(l1, meet.Label2));
}
}
private Label insertPolicy(Label lbl, MeetLabel meet)
{
if (lbl is PolicyLabel)
{
return(insertPolicy(meet, lbl as PolicyLabel) ?? new MeetLabel(lbl, meet));
}
else
{
return(new MeetLabel(lbl, meet));
}
}
private bool contains(MeetLabel meet, Label lbl)
{
if (meet == null)
{
return(false);
}
if (meet.Label1.Equals(lbl))
{
return(true);
}
if (meet.Label2.Equals(lbl))
{
return(true);
}
if (contains(meet.Label1 as MeetLabel, lbl) || contains(meet.Label2 as MeetLabel, lbl))
{
return(true);
}
return(false);
}